Note: This is not the absolute value for their potential, it is just an estimated value... :) Also this is only the potential of a beast that had just become an adult based on their rank and grade.

Normal animals - 100

Savage beast - normal - 200

uncommon - 300

Spirit beast - normal - 800

rare - 1600

beast lord - normal -2,800

uncommon - 4000

rare - 5,200

epic - 6,500

Beast king - normal -11,500

uncommon - 16,500

rare - 21,500

epic - 26,500

legend - 31,500

From beast emperor onwards, the values will be reevaluated as at that time the point of reference would change.

Stats of a normal human adult

Str: 10

Agi: 10

Vit: 10

Sta: 10

Men: 10

potential: 50

Hope this will help you understand the story more.